MMS 3 Fast Plasma Investigation: Electron Distribution Moments at 4.5-Second Resolution

NASA's Magnetospheric Multiscale (MMS) mission provides plasma data from the region of interest around Earth. The Fast Plasma Instrument's Dual Electron Spectrometer captures particle distributions at burst resolution, aggregated to 4.5-second survey data. This Level 2 product contains integrated distribution moments and instrument state annotations.

Use Cases

• Modeling magnetospheric plasma dynamics based on integrated distribution moments
• Analyzing electron behavior in Earth's radiation belts based on instrument operation modes
• Correlating plasma parameters with spacecraft location and instrument state annotations

Strengths

• Data originates from NASA's authoritative Magnetospheric Multiscale (MMS) mission
• Provides instrument state annotations alongside the standard moment parameters
• Last updated metadata indicates ongoing maintenance as of 2026-03-13

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is stored in BIN format, requiring specialized tools for access and analysis

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite measurements from the MMS 3 spacecraft's Fast Plasma Instrument, Dual Electron Spectrometer

Time Range

Covers the mission phases, with data collection modes (Fast/Slow Survey) dependent on the region of interest

Freshness

Last updated 2026-03-13 06:14:16.752860; freshness should be verified

Geography

Spatial coverage is the magnetospheric region of interest around Earth